76779801 has 12 divisors (see below), whose sum is σ = 126747712. Its totient is φ = 43874136.

The previous prime is 76779793. The next prime is 76779809. The reversal of 76779801 is 10897767.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (76779793) and next prime (76779809).

It is not a de Polignac number, because 76779801 - 2³ = 76779793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76779809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 609301 + ... + 609426.

Almost surely, 2^76779801 is an apocalyptic number.

It is an amenable number.

76779801 is a deficient number, since it is larger than the sum of its proper divisors (49967911).

76779801 is a wasteful number, since it uses less digits than its factorization.

76779801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218740 (or 1218737 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 76779801 is about 8762.4084018037. The cubic root of 76779801 is about 425.0261594048.

The spelling of 76779801 in words is "seventy-six million, seven hundred seventy-nine thousand, eight hundred one".